<template>
  <div class="login_container">
    <div class="login_box">
      <!-- 头像区域 -->
      <div class="touxiang">
        <img src="./../images/touxiang.png" />
      </div>
      <!-- 表单区域 -->
      <el-form
        ref="loginFormRef"
        :model="loginForm"
        :rules="loginFormRules"
        label-width="0px"
        class="login_form"
      >
        <!-- 用户名 -->
        <el-form-item prop="username">
          <el-input
            v-model="loginForm.username"
            prefix-icon="iconfont icon-user"
          ></el-input>
        </el-form-item>
        <!-- 密码 -->
        <el-form-item prop="password">
          <el-input
            v-model="loginForm.password"
            prefix-icon="iconfont icon-3702mima"
            type="password"
          ></el-input>
        </el-form-item>
        <!-- 按钮 -->
        <el-form-item class="buttons">
          <el-button type="primary" @click="dengluches" class="denglu"
            >登录</el-button
          >
          <!-- <span class="jiange"></span> -->
          <el-button type="danger" @click="resetLoginForm">重置</el-button>
        </el-form-item>
      </el-form>
    </div>
  </div>
</template>

<script>
export default {
  data() {
    return {
      //登录表单的数据绑定对象
      loginForm: {
        username: "",
        password: "",
      },
      //登录表单的验证对象规则
      loginFormRules: {
        //验证用户名是否合法
        username: [
          { required: true, message: "请输入用户名", trigger: "blur" },
          {
            min: 3,
            max: 10,
            message: "长度在 3 到 10 个字符",
            trigger: "blur",
          },
        ],
        //验证密码是否合法
        password: [
          { required: true, message: "请输入密码", trigger: "blur" },
          {
            min: 6,
            max: 15,
            message: "长度在 6 到 15 个字符",
            trigger: "blur",
          },
        ],
      },
    };
  },
  methods: {
    //点击重置按钮重置登录表达
    resetLoginForm() {
      this.$refs.loginFormRef.resetFields();
    },
    dengluches() {
      this.$refs.loginFormRef.validate(async (valid) => {
        if (!valid) return;
        const result = await this.$http.post("login", this.loginForm);
        if (result.data.meta.status !== 200) {
          return this.$message.error("登录失败！");
        } else {
          this.$message.success("登录成功！");
        }
        console.log(result.data.data.token);
        //将token存储在sessionStorage中保存
        window.sessionStorage.setItem("token", result.data.data.token);
        //跳转网页
        this.$router.push("/home");
      });
    },
  },
};
</script>

<style lang="less" scoped>
.login_container {
  background: url(./../images/tianyi.png);
  background-size: cover;
  height: 100%;
}
.login_box {
  width: 450px;
  height: 300px;
  background: #fff;
  border-radius: 3px;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  box-shadow: 0 0 20px rgb(129, 129, 129);
  .touxiang {
    height: 130px;
    width: 130px;
    border: 1px solid #eee;
    border-radius: 50%;
    padding: 10px;
    box-shadow: 0 0 10px rgb(90, 90, 90);
    position: absolute;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: rgb(243, 243, 243);
    img {
      width: 100%;
      height: 100%;
      border-radius: 50%;
    }
  }
}
.buttons {
  display: flex;
  justify-content: flex-end;
  padding-right: 20px;
}
.denglu {
  margin-right: 220px;
}
.login_form {
  position: absolute;
  bottom: 0px;
  width: 100%;
  padding: 0 20px;
  box-sizing: border-box;
}
</style>